Frank, I was just going to amend my post stating,
"Never mind, I'm an idiot", then I see your post
stating what it took me half an hour to learn, lol.
Most of my collection is "pre 1960", and most have
I had the pickup tube in a can of gas, and put
suction to the outlet fitting, via my sand blaster gun......
nothing......... then I got the bright idea to push
in one of those pins!
I thought they were just spring loaded pins to keep
tension on the hose connector.